CN2649884Y - Ball valve sealing structure - Google Patents
Ball valve sealing structure Download PDFInfo
- Publication number
- CN2649884Y CN2649884Y CN 03209742 CN03209742U CN2649884Y CN 2649884 Y CN2649884 Y CN 2649884Y CN 03209742 CN03209742 CN 03209742 CN 03209742 U CN03209742 U CN 03209742U CN 2649884 Y CN2649884 Y CN 2649884Y
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- ball valve
- spheroid
- seal ring
- inner seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Taps Or Cocks (AREA)
Abstract
The utility model relates to a ball valve sealing structure, comprising a spherical body and a sealing ring. An intelligent spring and a rubber sealing ring are arranged outside the sealing ring. The intelligent spring is close to the spherical inner sealing ring. A flute is arranged in the spherical inner sealing ring. The rubber sealing ring is embedded in the flute. When the sealing ring is worn out or run out of elasticity, the intelligent spring would push and press the inner sealing ring. In this way, the closeness remains between the inner sealing ring and the spherical body, as well as the leakage of the spherical body is avoided. With the structure, the utility model improves the sealing effect of the ball valve sealing structure and prolongs service life.
Description
Technical field
The utility model relates to a kind of ball valve sealing structure.
Background technique
Ball valve is to make open-shut device with the spheroid of band garden shape through hole, and spheroid places valve body, and spheroid rotates to realize the switching motion of valve with valve rod.The sealing of ordinary ball valve is to adopt the soft seal circle, and general the employing gathered tetrafluoro soft seal circle.There is following defective in this sealing configuration: the one, poly-tetrafluoro soft seal circle in use since wearing and tearing and with the passing of time after the elasticity Lock-out ball valve begin to leak and can't continue and use; Two are to use temperature to be subjected to the restriction of soft seal circle, and its serviceability temperature scope can not enlarge.
Summary of the invention
The utility model purpose is to provide a kind of new ball valve sealing structure, to overcome the above-mentioned defective that existing ordinary ball valve exists.
The ball valve sealing structure that the utility model provides comprises spheroid and spheroid inner seal ring, the outside of spheroid inner seal ring is provided with intelligence type spring and rubber seal, intelligence type spring is adjacent to the spheroid inner seal ring, and the spheroid inner seal ring is provided with groove, and rubber seal is embedded in the groove.When inner seal ring followed the string or wear and tear, intelligence type spring can push inner seal ring, made inner seal ring continue the seal of maintenance and spheroid, prevented that ball valve from leaking.
Because the utility model has increased intelligence type spring and rubber seal on the spheroid inner seal ring, thereby has effectively improved the sealability and the effect of existing ball valve sealing structure, has prolonged the working life of ball valve.
Below in conjunction with drawings and Examples technology contents of the present utility model is described further.
Description of drawings
Fig. 1 is to use ball valve overall structure schematic representation of the present utility model.
Fig. 2 is the structural representation of the utility model ball valve sealing structure.
Fig. 3 is the shape schematic representation of intelligence type spring.
Embodiment
As shown in drawings, the present embodiment ball valve sealing structure comprises spheroid 2 and spheroid inner seal ring 3, the spheroid inner seal ring places in the valve body 1 and with spheroid and closely contacts, the left and right position, the outside of spheroid inner seal ring respectively is provided with intelligence type spring 5 and rubber seal 4, intelligence type spring is adjacent to the spheroid inner seal ring, the spheroid inner seal ring is provided with groove 6, and rubber seal 4 is embedded in the groove.The valve body inner seal ring can adopt soft seal circle or hard seal ring, and present embodiment adopts the metal hard-sealing circle, to adapt to the use of natural gas line, enlarges its temperature using scope.
Claims (3)
1, a kind of ball valve sealing structure, comprise spheroid (2) and valve body inner seal ring (3), spheroid inner seal ring (3) places in the valve body (1) and with spheroid and closely contacts, the outside that it is characterized in that the spheroid inner seal ring is provided with intelligence type spring (5) and rubber seal (4), intelligence type spring is adjacent to the spheroid inner seal ring, the spheroid inner seal ring is provided with groove (6), and rubber seal (4) is embedded in the groove.
2, ball valve sealing structure according to claim 1 is characterized in that the left and right position, the outside of spheroid inner seal ring (3) respectively is provided with intelligence type spring (5) and rubber seal (4).
3, ball valve sealing structure according to claim 1 and 2 is characterized in that the valve body inner seal ring is the metal hard-sealing circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03209742 CN2649884Y (en) | 2003-08-11 | 2003-08-11 | Ball valve sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03209742 CN2649884Y (en) | 2003-08-11 | 2003-08-11 | Ball valve sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2649884Y true CN2649884Y (en) | 2004-10-20 |
Family
ID=34325229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03209742 Expired - Fee Related CN2649884Y (en) | 2003-08-11 | 2003-08-11 | Ball valve sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2649884Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080732A (en) * | 2009-12-01 | 2011-06-01 | 凯撒博内蒂股份公司 | Metal seal for ball valves and ball valve comprising said seal |
-
2003
- 2003-08-11 CN CN 03209742 patent/CN2649884Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080732A (en) * | 2009-12-01 | 2011-06-01 | 凯撒博内蒂股份公司 | Metal seal for ball valves and ball valve comprising said seal |
| CN102080732B (en) * | 2009-12-01 | 2016-03-16 | 凯撒博内蒂股份公司 | For ball valve metal seal and comprise the ball valve of the seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |